Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January tends to be the coldest month, with temperatures averaging a daily high of 37.2°F (2.9°C) and a low of 28.6°F (-1.9°C).Humidity
The average relative humidity in January is 73%.Rainfall
January is the month with the least rainfall. Rain falls for 8 days and accumulates 2.17" (55mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Westbury, during January, snow falls for 4.6 days and regularly aggregates up to 1.26" (32mm) of snow. In Westbury, during the entire year, snow falls for 15.8 days and aggregates up to 5.91" (150mm) of snow.Daylight
In January, the average length of the day in Westbury is 9h and 39min.On the first day of January in Westbury, sunrise is at 7:18 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 5:10 pm EST.
Sunshine
In Westbury, the average sunshine in January is 5.1h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Westbury. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 2 during January translates into the following directions:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. To protect against the Sun's most potent rays, avoid direct exposure around midday. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Frequently asked questions
What is the coldest month in Westbury?
How cold is it in Westbury in January?
What is the average humidity in January in Westbury?
What is the driest month in Westbury?
How many days does it rain in January in Westbury?
How many days does it snow in January in Westbury?
What is the average length of the day in January in Westbury?
When are sunrise and sunset in January in Westbury?
How long on average sun shines in January in Westbury?
What are the months with the lowest UV index in Westbury?
How high is the UV index in January in Westbury?
Average temperature in January
Westbury, NY
- Average high temperature in January: 37.2°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (37.2°F).
- Average low temperature in January: 28.6°F
The months with the highest average low temperature are July and August (71.2°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).
Average pressure in January
Westbury, NY
- Average pressure in January: 30.05"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Westbury, NY
- Average wind speed in January: 12.4mph
The windiest month (with the highest average wind speed) is January (12.4mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).
Average humidity in January
Westbury, NY
- Average humidity in January: 73%
The months with the highest relative humidity are May and June (76%).
The month with the lowest relative humidity is November (71%).
Average rainfall in January
Westbury, NY
- Average rainfall in January: 2.17"
The wettest month (with the highest rainfall) is July (4.13").
The driest month (with the least rainfall) is January (2.17").
Average rainfall days in January
Westbury, NY
- Average rainfall days in January: 8 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is January (8 days).
Average snowfall in January
Westbury, NY
- Average snowfall in January: 1.26"
The month with the highest snowfall is March (1.85").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Westbury, NY
- Average snowfall days in January: 4.6 days
The month with the highest number of snowfall days is February (4.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Westbury, NY
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in January
Westbury, NY
- Average sunshine days in January: 19.3 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in January
Westbury, NY
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in January
Westbury, NY
- Average cloud cover in January: 43
The months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in January
Westbury, NY
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Westbury, New York, USA
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